/**
 * Copyright 2013-2022 the original author or authors from the Jeddict project (https://jeddict.github.io/).
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package io.github.jeddict.reveng;

import java.util.List;
import java.util.NoSuchElementException;
import javax.swing.event.ChangeListener;
import org.openide.WizardDescriptor;

public abstract class BaseWizardDescriptor implements WizardDescriptor.InstantiatingIterator<WizardDescriptor> {

    protected int index;
    
    protected List<WizardDescriptor.Panel<WizardDescriptor>> panels;

    @Override
    public void uninitialize(WizardDescriptor wizard) {
        panels = null;
    }

    @Override
    public WizardDescriptor.Panel current() {
        return panels.get(index);
    }

    @Override
    public boolean hasNext() {
        return index < panels.size() - 1;
    }

    @Override
    public boolean hasPrevious() {
        return index > 0;
    }

    @Override
    public void nextPanel() {
        if (!hasNext()) {
            throw new NoSuchElementException();
        }
        index++;
    }

    @Override
    public void previousPanel() {
        if (!hasPrevious()) {
            throw new NoSuchElementException();
        }
        index--;
    }

    @Override
    public void addChangeListener(ChangeListener l) {
    }

    @Override
    public void removeChangeListener(ChangeListener l) {
    }
    
    @Override
    public String name() {
        return null;
    }

}
